Trainers » PlusPower | Errata » PlusPower
The wording of PlusPower is now as follows, "During this turn, your Pokémon's attacks do 10 more damage to the Active Pokémon (before applying Weakness and Resistance)." This card no longer attaches to a Pokémon when used.
Source: TPCi Announcement (2011-04-11), PUI Rules Team (2011-05-05)

Relevant cards

Note: All applicable cards may not be listed below.
WOTCB1_84
WOTCB2_113
WOTCB2_113
BW1_96
DP1_109
DP3_121
HGSS2_80
PL1_112